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98-365 · Question #118

Your backup plan calls for a full backup every Sunday. Every other day of the week, you need to back up only the changes since the last full backup. Which backup type should you use for Tuesday?

The correct answer is D. Differential. To back up only changes since the last full backup, without resetting the archive bit, a differential backup is the appropriate choice.

Understanding Storage

Question

Your backup plan calls for a full backup every Sunday. Every other day of the week, you need to back up only the changes since the last full backup. Which backup type should you use for Tuesday?

Options

  • ADaily
  • BNormal
  • CCopy
  • DDifferential

How the community answered

(37 responses)
  • A
    8% (3)
  • B
    16% (6)
  • C
    5% (2)
  • D
    70% (26)

Why each option

To back up only changes since the last full backup, without resetting the archive bit, a differential backup is the appropriate choice.

ADaily

A daily backup is a schedule designation and not a specific backup type that defines backing up only changes since the last full backup in the way differential does.

BNormal

A normal backup is synonymous with a full backup, which copies all selected files and clears the archive attribute, contrary to the requirement to back up only changes.

CCopy

A copy backup copies all selected files but does not clear the archive attribute; while it captures all data, it does not specifically target only the changes since the last full backup.

DDifferentialCorrect

A differential backup copies all data that has changed since the last full backup, leaving the archive attribute unchanged. This allows for restoration by combining only the last full backup and the latest differential backup.

Concept tested: Backup types and strategies

Source: https://learn.microsoft.com/en-us/windows/win32/vss/types-of-vss-backups

Topics

#Backup types#differential backup#full backup#data protection

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